Precipitation effects on grassland plant performance are lessened by hay harvest

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dc.contributor.authorCastillioni, Karen
dc.contributor.authorPatten, Michael A.
dc.contributor.authorSouza, Lara
dc.date.accessioned2022-02-15T13:53:02Z
dc.date.available2022-02-15T13:53:02Z
dc.date.issued2022-02
dc.description.abstractClimate and human management, such as hay harvest, shape grasslands. With both disturbances co-occurring, understanding how these ecosystems respond to these combined drivers may aid in projecting future changes in grasslands. We used an experimental precipitation gradient combined with mimicked acute hay harvest (clipping once a year) to examine (1) whether hay harvest influences precipitation effects on plant performance (cover and height) and (2) the role of interspecific responses in influencing plant performance. We found that hay harvest reduced the strength of precipitation effects on plant performance through changes in bare-ground soil cover. Species performance were mainly influenced by change in abiotic factors, often responding negatively, as hay harvest increased bare-ground amount. Conversely, altered precipitation without hay harvest promoted plant species performance through abiotic factors change first, followed by biotic. Most species, including the dominant grass Schizachyrium scoparium, increased their performance with greater leaf area index (proxy for canopy structure). Our experiment demonstrates that plant performance responds directly to abiotic factors with hay harvest, but indirectly without hay harvest. Positive effects of increasing precipitation were likely due to microhabitat amelioration and resource acquisition, thus inclusion of hay harvest as a disturbance lessens positive impacts of biotic variables on species performance to climate change.en_US
dc.description.peerreviewYesen_US
dc.description.peerreviewnotesThis dataset is part of the agreement with journal publisher for data shareen_US
dc.description.sponsorshipUniversity of Oklahoma Faculty Investment Program (FIP) and NSF ESPSCoR Research Infrastructure Improvement Award No. OIA-1301789en_US
dc.identifier.citationCastillioni et al.en_US
dc.identifier.doihttps://doi.org/10.1038/s41598-022-06961-7en_US
dc.identifier.urihttps://hdl.handle.net/11244/334592
dc.languageenen_US
dc.relation.ispartofseries;6961
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectecologyen_US
dc.subjectclimate changeen_US
dc.subjectplant communityen_US
dc.subjectdisturbanceen_US
dc.titlePrecipitation effects on grassland plant performance are lessened by hay harvesten_US
dc.typeDataseten_US
ou.groupDodge Family College of Arts and Sciences:Department of Microbiology and Plant Biologyen_US

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